<template>
  <div class="app-container">
    <el-form :model="queryParam" ref="queryForm" :inline="true">
      <el-form-item label="级别：">
        <el-select v-model="queryParam.level" placeholder="请选择" clearable="">
          <el-option
            v-for="item in levelEnum"
            :key="item.key"
            :value="item.key"
            :label="item.value"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="submitForm">查询</el-button>
        <router-link :to="{ path: '/subject/edit' }" class="link-left">
          <el-button type="primary">添加</el-button>
        </router-link>
      </el-form-item>
    </el-form>

    <el-table
      v-loading="listLoading"
      :data="tableData"
      border
      fit
      highlight-current-row
      style="width: 100%"
    >
      <el-table-column prop="id" label="Id" width="220px"/>
      <el-table-column prop="name" label="课程" />
      <!--<el-table-column prop="levelName" label="年级" />-->
      <el-table-column width="220px" label="操作" align="center">
        <template slot-scope="{ row }">
          <router-link
            :to="{ path: '/subject/edit', query: { id: row.id } }"
            class="link-left"
          >
            <el-button size="mini">编辑</el-button>
          </router-link>
          <el-button
            size="mini"
            type="danger"
            @click="delSubject(row)"
            class="link-left"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>
    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="queryParam.pageIndex"
      :limit.sync="queryParam.pageSize"
      @pagination="search"
    />
  </div>
</template>

<script>
import { mapGetters, mapState } from "vuex";
import Pagination from "@/components/Pagination";
import subjectApi from "@/api/subject";

export default {
  components: { Pagination },
  data() {
    return {
      queryParam: {
        level: null,
        pageIndex: 1,
        pageSize: 10,
      },
      listLoading: true,
      tableData: [],
      total: 0,
    };
  },
  created() {
    this.search();
  },
  methods: {
    search() {
      this.listLoading = true;
      subjectApi.pageList(this.queryParam).then((data) => {
        const re = data.response;
        this.tableData = re.list;
        this.total = re.total;
        this.queryParam.pageIndex = re.pageNum;
        this.listLoading = false;
      });
    },
    submitForm() {
      this.queryParam.pageIndex = 1;
      this.search();
    },
    delSubject(row) {
      let _this = this;
      subjectApi.deleteSubject(row.id).then((re) => {
        if (re.code === 1) {
          _this.search();
          _this.$message.success(re.message);
        } else {
          _this.$message.error(re.message);
        }
      });
    },
  },
  computed: {
    ...mapGetters("enumItem", ["enumFormat"]),
    ...mapState("enumItem", {
      levelEnum: (state) => state.user.levelEnum,
    }),
  },
};
</script>
